Dorner is wanted in connection with a double homicide in Irvine
on Sunday and the shooting of three police officers, one fatally, in
Riverside County on Thursday. Authorities described him as "armed and
extremely dangerous," and alerts about him were issued across California
and in Nevada as federal, state and local authorities intensified their
search.

Police are looking for anything that can help them find his whereabouts or could be considered evidence in the alleged crimes. The police are expected to continue their search well into the afternoon, Whalen said.

The Sharon Drive home, which police said is owned by Dorner's mother, is a gray one-story, ranch-style house.
The front yard is tidy, with a manicured lawn and a small brick fence.

Three uniformed marshals stood in front of the house, armed with rifles and wearing bulletproof vests.

After a burned-out truck belonging to Dorner was found in Big Bear on Thursday morning, the manhunt shifted to the mountain town.

Authorities are going door to door searching cabins in the area and are “methodically searching each building,” San Bernardino County Sheriff John McMahon said. There is no new information on Dorner’s whereabouts.

The snow “is great for tracking folks,” McMahon said,
noting that authorities continue to follow footprints.